Standard ML

1,384 students

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Exercises

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24 contributors

52 mentors

1,384
students have developed their Standard ML skills on Exercism.

Students

1,384

Submissions

7,171

Mentoring Discussions

The Standard ML track needs attention ⚠️

Building

Build

Use your knowledge to build the Standard ML track itself

24 contributors

Build Test Runners

Learn More

Create Test Runners that have the single responsibility of taking a solution, running all tests and returning a standardized output.

Next goal: Get Test Runners to Version 2. Standard ML is currently utilising a Version 1 Test Runner. Find out more.

Usage statistics

Total Test Runner Runs

6,708

Test Run Pass Rate

33.4% (2239)

Test Run Fail Rate

65.0% (4363)

Test Run Error Rate

1.6% (106)

Build Analyzers

Learn More

Build an Analyzer for Standard ML: Exercism's analyzers automatically assess student's submissions and provide mentor-style commentary.

Next goal: Build an Analyzer. Find out more.

Build Representers

Learn More

Build a Representer: a bit of code that has the single responsibility of taking a solution and returning a normalized representation of it.

Next goal: Build a Representer. Find out more.

Create Practice Exercises

Learn More

Practice Exercises are exercises designed to allow students to solve an arbitrary problem, with the aim of them making use of the concepts they have learned so far.

Next goal: Implement at least 40 practice exercises. Find out more.

Usage statistics

33 active practice exercises

Started

Attempts

Completions

Mentoring requests

Hello World

617

807 (avg. 1.3)

439 (71.2%)

0 (0.0%)

Leap

301

939 (avg. 3.1)

201 (66.8%)

31 (10.3%)

Two Fer

241

875 (avg. 3.6)

171 (71.0%)

36 (14.9%)

Space Age

126

683 (avg. 5.4)

88 (69.8%)

2 (1.6%)

Pangram

375 (avg. 3.9)

49 (51.0%)

3 (3.1%)

Collatz Conjecture

470 (avg. 5.3)

63 (71.6%)

6 (6.8%)

Matching Brackets

352 (avg. 4.9)

38 (52.8%)

3 (4.2%)

Allergies

210 (avg. 3.6)

35 (59.3%)

3 (5.1%)

Accumulate

123 (avg. 1.6)

66 (85.7%)

6 (7.8%)

All Your Base

165 (avg. 2.6)

31 (49.2%)

3 (4.8%)

Anagram

177 (avg. 3.9)

29 (64.4%)

1 (2.2%)

Atbash Cipher

244 (avg. 7.2)

26 (76.5%)

0 (0.0%)

Bob

173 (avg. 3.5)

28 (57.1%)

1 (2.0%)

Diamond

108 (avg. 3.9)

20 (71.4%)

0 (0.0%)

Difference of Squares

101 (avg. 2.2)

34 (73.9%)

2 (4.3%)

Flatten Array

123 (avg. 2.7)

32 (69.6%)

2 (4.3%)

Hamming

121 (avg. 2.6)

35 (74.5%)

2 (4.3%)

List Ops

224 (avg. 6.1)

26 (70.3%)

0 (0.0%)

Nth Prime

71 (avg. 2.2)

24 (72.7%)

1 (3.0%)

Perfect Numbers

106 (avg. 3.4)

21 (67.7%)

1 (3.2%)

Phone Number

105 (avg. 3.4)

22 (71.0%)

0 (0.0%)

Pig Latin

74 (avg. 2.6)

15 (51.7%)

0 (0.0%)

Prime Factors

41 (avg. 1.4)

18 (60.0%)

1 (3.3%)

Raindrops

52 (avg. 1.6)

24 (72.7%)

0 (0.0%)

RNA Transcription

54 (avg. 1.7)

23 (74.2%)

0 (0.0%)

Roman Numerals

50 (avg. 2.0)

17 (68.0%)

0 (0.0%)

Sum of Multiples

97 (avg. 2.6)

23 (62.2%)

0 (0.0%)

Reverse String

78 (avg. 3.1)

22 (88.0%)

1 (4.0%)

Acronym

31 (avg. 2.6)

10 (83.3%)

0 (0.0%)

Affine Cipher

42 (avg. 3.2)

7 (53.8%)

0 (0.0%)

Gigasecond

13 (avg. 1.4)

4 (44.4%)

0 (0.0%)

Triangle

62 (avg. 5.6)

8 (72.7%)

0 (0.0%)

Pascals Triangle

21 (avg. 1.9)

5 (45.5%)

0 (0.0%)

1 deprecated practice exercises

Started

Attempts

Completions

Mentoring requests

Binary

4 (avg. 1.3)

2 (66.7%)

0 (0.0%)

96 unimplemented practice exercises

Alphametics

Armstrong Numbers

Bank Account

Binary Search

Binary Search Tree

Book Store

Bottle Song

Bowling

Change

Circular Buffer

Clock

Complex Numbers

Connect

Crypto Square

Custom Set

D&D Character

DOT DSL

Darts

Dominoes

ETL

Error Handling

Food Chain

Forth

Go Counting

Grade School

Grains

Grep

Hangman

High Scores

House

ISBN Verifier

Isogram

Killer Sudoku Helper

Kindergarten Garden

Knapsack

Largest Series Product

Ledger

Lens Person

Linked List

Luhn

Markdown

Matrix

Meetup

Micro Blog

Minesweeper

Nucleotide Count

OCR Numbers

POV

PaaS I/O

Palindrome Products

Parallel Letter Frequency

Poker

Protein Translation

Proverb

Pythagorean Triplet

Queen Attack

REST API

Rail Fence Cipher

Rational Numbers

React

Rectangles

Resistor Color

Resistor Color Duo

Resistor Color Trio

Robot Name

Robot Simulator

Rotational Cipher

Run-Length Encoding

SGF Parsing

Saddle Points

Satellite

Say

Scale Generator

Scrabble Score

Secret Handshake

Series

Sieve

Simple Cipher

Simple Linked List

Spiral Matrix

Square Root

State of Tic-Tac-Toe

Strain

Sublist

Tournament

Transpose

Tree Building

Twelve Days

Two Bucket

Variable Length Quantity

Word Count

Word Search

Wordy

Yacht

Zebra Puzzle

Zipper

Volunteers

snahor

846

sshine

672

kytrinyx

477

+ 17 more

We 💙 our volunteers

Exercism relies on open-source volunteers to build our language tracks and mentor students.

Become an Exercism Volunteer

1,384 students have developed their Standard ML skills on Exercism.

The Standard ML track needs attention ⚠️

Build

Build Test Runners

Usage statistics

Build Analyzers

Build Representers

Create Practice Exercises

Usage statistics

We 💙 our volunteers

1,384
students have developed their Standard ML skills on Exercism.